Emergency-tire for automobiles.



Wilnesseg S. DAVIDSON.

EMBRGEMTTIRE FOR AUTOMOBILES. APPLIUATIOH FILED JULY 5, 1912.

1,052,801. Patented Feb. 11, 1913.

2 SHEETS-SHEET 1.

S. DAVIDSON. EHIRGENOY TIRE FOB AUTOMOBILES.-

APPLIOATION FILED JULY 5, 1912.

Patented Feb. 11,1913.

Invehlor 9 WI'Inesses w/fraxf semen]: navrnson, or DETROIT, MICHIGAN.

EMERGENCY-TIRE FOR AUTOMOBILES.

weasel.

Specification of Letters Patent.

Patented Feb, 11, 1913.

Application filed July 5, 1912. Serial No. 707,690.

To all whom "it may concern:

Be it known that I, SAMUEL DAVIDSON, a citizen of the United States,residing at Detroit, in the county of \Vayne and State of Michi on, haveinvented certain new and useful innprovements in Emergency-'lires forAutomobiles, of which the following is a specification. I

In an application filed by me July 10, 1911, Serial No. 687,069, for anemergency tire for automobiles, I have explained at length the purposesand principles concerned in the art to which this invention lates; andin thatapplication l have claimed certain features which are shown butnot claimed in this application.

My present invention comprises a further improvement in emergency tiresof the general nature described in said previous application. Its objectis to improve generally upon such devices and the several parts-thereof; to provide for more easily applying the tire to and removingit from the rim; to provide for holding it more securely on the rim; toprovide special brackets swiveled to the tire proper and in connectiontherewith a retaining ring that is wedge shaped in cross section; and toprovide a special means of preventing the swivelcd brackets from turningwhen properly in position on the wheel. And my invention consists of theparts, improvements, and combinations hereinafter set forth and claimed.

In the drawings accompanying and forming part of this specification, andin the description of the drawings, I have shown my invention in itspreferred form and what I deem to be the best mode of applying theprinciples thereof; but it is to be understood that, within the .scopeof the appended claims, 1 contemplatechangcs in form, proportions, andmaterials, the transposition otparts, and the substitution of equivalentmembers, without departing from the spirit of my invention.

Figure 1 is a side elevation of an emergency tire made in accordancewith the principles of my invention, mounted on a wheel rim, the part Abeing shown in center section, and the part B showing the bracketsturned to the proper posit-ions for applyingthe tire to and removing itfrom the rim. Fig. 2 is an enlarged transverse scetional elevation onthe plane indicated by the line 2 in Fig. 3, which is a plan view, witha dotted outline of the position to which the bracket is shifted whenapplying the tire to or removing itfrom the rim, the retaining ring forthe brackets not being shown in this view. Fig. at is a sectionalchrvation' of one of the brackets on a plane indicated by the line 4 inFig. 2. Fig. 5 is a similar view of the key bracket, with wedge andlocking bolt. Figs. (3 and 7 are views of the wedge. Fig. 8 is asectional elevation on a plane indicated by the line 8 in Figs; 2 and S)of the heads of the locking ring and the bolt for drawing them together.Fig. 9 is a view of one of the heads, taken as indicated by the arrow 9in Fig. 8. Fig. 10 is a view of another form of bracket, this one beingadapted for clencher rims, the form shown in the previous figures ,beingadapted forDunlop, or straight, flange rims.

Similar reference characters indicate like or similar parts throughoutthe several views.

'15 is a steel channel and 16 the rubber tread comprising the tireproper, it being understood that the remaining parts are for the purposeof building up between the rim and this tire.

Secured. to the channel, by swagin'g, and extending inwardly therefrom,are the bolts 17, 17 to which b aekets are swiveled. Each bracketcomprises an outer end plate 18 provided with a hole 19 for the,bolt,two legs 22, 22, and a bottom connectingplate 23. The bracket isswiveled to the bolt and held in place by the nut 20 and lock washer 21.Each bracket is also provided with the lugs 24,24, which are adapted tobear against the side flanges of the rim, and the corners are dubbedoil, as shown at 25, 25 so that the brackets may be turned. Each bracketis dished or concaved in the bottom between the lugs, as shown at 26.Any suitable number of these brackets may be used, they being placedequidistantly apart, each swiveled to the tire, and extending radiallyand inwardly.

To apply the emergency tire to the rim 11 thc'retaining ring 14: andthenear flange 13 having been removed from the rim, the brackets are turnedlengthwise of the tire and rim, as ind 'ittOtl at Bin Fig. 1 and in thedotted outline in Fig. 3. The emergency tire is then slipped onto therim, the eoncave's 26 in the bottoms of the brackets, extendinglengthwise of the rim, allow ample room for this operation. The rimflange 1'3 and the retaining ring 14: are then replaced.

The brackets are then all turned to their positions transversely of therim, as shown in Fig. '2, which operation brings them to a snug litbetween the flanges, the dubbed-oll' corners 25 permitting this movementand snug fit. cross-wise of the rim, the looseness which existed whenthe concaves extended lenglh wise of the rim is taken up. thus securinga proper compression between the tire and the rim to hold the emergencytire in po sition. To remove the emergency tire, the operation isreversed.

I use the key ln'aeketwhich is shown in Fig. 5, and which is similar tothe other brackets, except that it has a hole 27 in its bottom plate, inconnection with a bolt '28 which is passed through the rim and tellthrough the valve-stem hole, and the nut 30 and lock 'asher 29. In orderto take up any looseness which might exist in the emergency tire, Iinsert a wedge 81 under the key bracket, this wedge being provided witha slot 33 to encompass the bolt and a flange bearing against thebracket.

To prevent the brackets from turning back from the proper transversepositions, when on the rim, I use a draw locking ring 34 that is wedgeshaped in cross section and terminates in two laterally projecting lugs35, 36, which are drawn together by means of the bolt 38 which isthreaded through the lug 35 and fits loosely in the lug 36. so that byplacing the locking ring between the flange and the sides of thebrackets, as shown in the drawings, and then drawing up the ends byturning the bolt, the brackets will be positively prevented fromturning. i or a elencher type rim, I use a bracket the lugs 40, 40 ofwhich are so shaped as to lit in the beads of the wheel rim.

\Vhat I claim is:

1. In an emergency tire, adapted for use in'conjunction withaquick-detaehable or equivalent type of rim, the combination of a channelcarrying a tread member, a seriesof radially rigid brackets swivcled tosaid channeled rim and extending inwardly therefrom, each bracket'be-ingformed to fit snugly between the flanges of said rim when the bracket isturned crosswise and loosely when turned lengthwise of the same andbeing also longitudinally concaved (in The concave being now turned 1its lengthwise position), a bolt securing one of said brackets to therim and telly, a locking ring that is wedge-shapedin cross-sectionadapted to fit between the sides of said brackets and one of the rimtlanges and having outwardly projecting lugs at its ends, and adraw-bolt engaging said lugs.

2. In an emergency tire, the combination with the tire proper. of aseries of inwardly extending and adially rigid brackets swiveled to saidtire, said brackets being formed to tit snugly between the flanges of awheel rim when turned crosswise and loosely when turned lengthwise ofsaid rim, and being also formed with concaves in a directioncorrespont'ling with the periphery of the wheel rim when the bracketsare in a lengthwise position. said concaves att'ording means forradially clamping the tread portion to the wheel rim. i

3. In an emergency tire, the combination with the tire proper. of aseries of inwardly extending and radially rigid brackets swiveled tosaid tire, said brackets being formed to tit both lengtlnvis andcross-wise of said rim, and having their bottoms formed with concavesextending lengthwise of the wheel rim when the brackets are inlengthwise position. said concaves all'ording means for radiallyclamping the tread portion to the wheel rim, a locking ring that iswedgeshapcd in cross-section and formed to tit between the sides of saidbrackets and one of the wheel rim flanges and having outwardlvprojecting lugs at its ends. and a draw-bolt engaging said lugs.

4. in an emergency tire adapted for use in conjunction with aquickdetachable or equivalent type. of rim, the cou'ibimilion t an outerrim and a series of radially-and inwardly extending brackets swiveled tosaid rim, ach bracket being inexpansible. radi ally and being formed atits outer end to bear against said outer rim and at its inner end to beaagainst the face and between the flanges of a wheel rim.

In testimony whereof I have atlixcd my signature in presence of twowitnesses.

SAMUEL DAVIDSON.

Witnesses:

Gico. ll. KIRCIINER, Eowann GERSI'ED.

